/*---------------------------------------------------------------------------*\
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License
    This file is part of OpenFOAM.

    OpenFOAM is free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

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    for more details.

    You should have received a copy of the GNU General Public License
    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.

Class
    Foam::interfaceCompositionModels::Raoult

Description
    Raoult's law of ideal mixing. A separate composition model is given for
    each species. The composition of a species is equal to the value given by
    the model scaled by the species fraction in the bulk of the other phase.

SourceFiles
    Raoult.C

\*---------------------------------------------------------------------------*/

#ifndef Raoult_H
#define Raoult_H

#include "interfaceCompositionModel.H"

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

namespace Foam
{
namespace interfaceCompositionModels
{

/*---------------------------------------------------------------------------*\
                           Class Raoult Declaration
\*---------------------------------------------------------------------------*/

class Raoult
:
    public interfaceCompositionModel
{
    // Private Data

        //- Non-vapour species fraction
        volScalarField YNonVapour_;

        //- Non-vapour species fraction derivative w.r.t. temperature
        volScalarField YNonVapourPrime_;

        //- Species' individual composition models
        HashPtrTable<interfaceCompositionModel> speciesModels_;


public:

    //- Runtime type information
    TypeName("Raoult");


    // Constructors

        //- Construct from a dictionary and an interface
        Raoult
        (
            const dictionary& dict,
            const phaseInterface& interface
        );


    //- Destructor
    virtual ~Raoult();


    // Member Functions

        //- Update the composition
        virtual void update(const volScalarField& Tf);

        //- The interface species fraction
        virtual tmp<volScalarField> Yf
        (
            const word& speciesName,
            const volScalarField& Tf
        ) const;

        //- The interface species fraction derivative w.r.t. temperature
        virtual tmp<volScalarField> YfPrime
        (
            const word& speciesName,
            const volScalarField& Tf
        ) const;
};


// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

} // End namespace interfaceCompositionModels
} // End namespace Foam

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

#endif

// ************************************************************************* //
